NL24613C - - Google Patents
Info
- Publication number
- NL24613C NL24613C NL24613DA NL24613C NL 24613 C NL24613 C NL 24613C NL 24613D A NL24613D A NL 24613DA NL 24613 C NL24613 C NL 24613C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL309581X | 1928-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL24613C true NL24613C (it) |
Family
ID=19783588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL24613D NL24613C (it) | 1928-04-13 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE359011A (it) |
| DE (1) | DE598547C (it) |
| FR (1) | FR671588A (it) |
| GB (1) | GB309581A (it) |
| NL (1) | NL24613C (it) |
-
0
- NL NL24613D patent/NL24613C/xx active
- BE BE359011D patent/BE359011A/xx unknown
-
1929
- 1929-03-16 DE DEN30057D patent/DE598547C/de not_active Expired
- 1929-03-16 FR FR671588D patent/FR671588A/fr not_active Expired
- 1929-03-25 GB GB9547/29A patent/GB309581A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE359011A (it) | |
| FR671588A (fr) | 1929-12-14 |
| GB309581A (en) | 1930-03-13 |
| DE598547C (de) | 1934-06-12 |